If you have completed your work reboot your machine after a pause of 15sec to give smartdrive time to flush its buffer. You will notice, that you have the classic command. Default value is 32, but some programs want some more DMA buffer. But didn’t he have the equipment specialized to test memory? The shell option load an alternative command processor 4dos in this case. If you are using Windows95 you will have noticed that you can start a DOS shell from the desktop.

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This frame has to be located somewhere.

Configuring your MS-DOS properly

Oh well, ain’t it fun! As write accesses to the FAT of your hard disk are also cached in memory you can ruin you entire hard disk! So the biggest driver should be loaded first. But some of this memory is reserved, so we have to tell emm which part it can use. In the last years I have been asked very often to have a look at someone’s “autoexec”, because something was not working as expected.

OS won’t load – ” has detected unreliable XMS memory “

After you loaded the emm you can use the devicehigh and lh commands. By using this site, you accept the Terms of Use and Rules of Participation. First you are probably running Norton Antivirus.


I only suggest one here, because too much damage can be done by twiddling in win. Does it look like this: In fact they always tell you that their product Windows 95 is a complete operating system no longer relying on MS-DOS.

If your windows crashes daily mine certainly does you normally do not have to xmw scandisk manually, cause windows does the job for you every time you boot up again after a crash.

Create a new discussion If you’re asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem.

Configuring your MS-DOS properly

Daily use of defrag is surely overkill. If you are look at your autoexec. This program can humem run from time to time too. For full access please Register.

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Before Win95 this file was needed to boot up the machine together with IO. Now we have two possibilites.

This topic has been locked due to inactivity for a long period of time. So set this to Z and be save.


Didn’t find what you were looking for? Until you replace the motherboard you could just disable the L2 cache in the BIOS– but that will cause quite a performance hit. But if Himem detects a problem it will alert you with that message and halt the boot process into Safe Mode. Booting without any PCI cards. Pulled out secondary IDE cable. Often programs insert lines into you autoexec. So disabling this option can speed up your disk system a bit. In fact Microsoft has prepared their software for the things we want to do.

By continuing to use this site, you are consenting to our use of cookies. Watch out for another tutorial on how to use 4DOS, which I will write in the near future. It provides additional memory manangement routines needed by many programs and it is able to load DOS programs and drivers into the UMB.